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| Number | Title | Issue Date |
| 8156865 | Method of operating a printing machine and printing machine for carrying out the method A method for operating a printing machine in a print operating mode and another operating mode, for example a maintenance mode. In the print operating mode, bringing a vibrating roller periodically into contact with a first roller of an inking unit, driving the firs... | 04/17/2012 |
| 7699000 | Device for mounting a cylinder in a printing unit, and method for adjustment of a print on-position A cylinder of a printing press is mounted using a bearing block. A radial bearing is movable in spaced linear bearings along an adjustment direction of the cylinder. The bearing is embodied as a modular bearing unit which may be a one piece assembly. The linear bear... | 04/20/2010 |
| 7555981 | Roller support apparatus for printing roller A roller support apparatus includes a compression coil spring, lever, bias canceling member, roller holder, and support. The compression coil spring biases the distribution roller in a direction to come close to the oscillating roller. The lever transmits a biasing ... | 07/07/2009 |
| 7448322 | Roller closing device with an inner and outer part A roller closing device is provided with an inner element and with an outer element. These two elements are arranged at least partially in a coaxial manner. The inner element can be deflected radially with respect to the outer element by the use of at least one elas... | 11/11/2008 |
| 7387069 | Devices and methods for setting the contact pressure of a displaceably mounted roller A device is used to set a contact pressure between a displaceable roller and another roller or for moving the displaceable roller with respect to the other roller. At least one actuator is subjectible to the action of a pressure medium and presses the displaceable r... | 06/17/2008 |
| 7287472 | Printing unit with ink transfer roller and bearing blocks including support elements for ink chamber A printing unit of a printing machine has at least one ink transfer roller, and at least one bearing block movable relative to the printing unit frame, in which, in the printing position, one end of the ink transfer roller can be supported, and which releases that e... | 10/30/2007 |
| 7258066 | Inking system for flexographic printing presses An inking system of a flexographic printing press with an anilox roller and a printing plate roller involved in color transport is shown. The positions of these two rollers relative to each other and to the impression cylinder are set using positioning elements that... | 08/21/2007 |
| 7207266 | Printing press A printing press contains a distributor roller, an oscillating roller which has a roller axle and a roller barrel, and a switching device for optionally releasing, in a first operating mode, and locking, in a second operating mode, an oscillating movement of the rol... | 04/24/2007 |
| 7188565 | Flexography ink roller unit A ink roller unit comprised of multiple ink rollers axially arrange in parallel on a turntable unit; the turntable unit being provided to a dancer; one end of the dancer being pivoted to a lateral shaft and the other end coupled to a drive unit; the dancer as driven... | 03/13/2007 |
| 7171900 | Variable format offset printing machine A printing press includes a frame that supports one or more printing units. Each printing unit includes a retractable inker module cantileverly supported by the frame, an ink injection system having a pump, a sidelay registration mechanism for one or more plate cyli... | 02/06/2007 |
| 7150226 | Apparatus for positioning a roll in an inking or damping unit of a rotary press An apparatus is provided for positioning a roll in an inking or damping unit of a rotary press with respect to at least one adjacent roll. The axle of the first roll is mounted in at least one bearing arrangement that is movable with respect to a side wall of the pr... | 12/19/2006 |
| 7134393 | Oscillation amount adjusting device for oscillating roller In an oscillating roller swing device including an oscillating roller, a rotating shaft having an inclined shaft portion, a cylindrical sleeve rotatably supported on the inclined shaft portion of the rotating shaft, a disk rotatably supported on the sleeve, and an o... | 11/14/2006 |
| 7124683 | Device for regulating cylinders in a printing machine A pressure force exerted by first and second cylinders upon at least a third cylinder in a printing machine is regulated by a pressure regulating device. The device can also be using for moving a first cylinder and at least one second cylinder into and out of contac... | 10/24/2006 |
| 7117792 | Method and devices for regulating at least one cylinder in a printing press The forces exerted by actuators are detected and devices are provided, which use those detected forces to regulate a pressure force exerted by one cylinder against another cylinder in a printing machine. The several forces can also be used for placing or removing on... | 10/10/2006 |
| 7111553 | Method of kneading ink of a printing press and printing press In a printing press, ink fountain keys are disposed to be movable toward and away from an ink fountain roller of an ink fountain to allow them to have a predetermined gap therebetween and hence the amount of ink to be fed to a downstream roller to be determined. The... | 09/26/2006 |
| 7104197 | Oscillation amount adjusting device for oscillating roller An oscillation amount adjusting device for an oscillating roller has a sleeve detent plate for restraining the rotation of a sleeve. An operator manually loosens a sleeve locking bolt to render the sleeve rotatable relative to a rotating shaft supporting the sleeve.... | 09/12/2006 |
| 7028616 | Ink supply amount control method and apparatus for printing press In an ink supply amount control method for a printing press, the number of ink fountain keys whose gap amount with respect to an ink fountain roller falls within a predetermined range is counted. On the basis of the count value, the swing operation of an ink ductor ... | 04/18/2006 |
| 6910417 | Inking arrangement improvement A mechanism for rotary printing presses to increase the number of ink form-rollers without decreasing the space available for changing the printing plates. An additional advantage of this mechanism is the ease of access to the inner form rollers. ... | 06/28/2005 |
| 6892637 | Self-inking stamp with ink cartridge barrier A stamp pad holder for use in a self-inking hand stamp. The stamp pad holder has a stamp die box that holds a stamp forming material, ink cartridge and plastic within the die box. The stamp forming material is placed at the bottom of the die box. A pre-inked ink car... | 05/17/2005 |
| 6758141 | Method and apparatus for the retention of ink profile for printing The invention is a method for retaining an ink profile established during ink infeed, for printing in an inking unit of a printing press containing a drive for the inking unit, an ink dosing device, and a roller group in the inking unit having oscillating rollers an... | 07/06/2004 |
| 6708616 | Method of adjusting two rollers that can be placed on each other in a printing unit In order to achieve a good printed result, it is important that the rollers that interact with each other are arranged at a suitable distance from each other, so that they act on each other with the pressure as stipulated. In order to set the rollers, use is made of... | 03/23/2004 |
| 6691612 | Driving device for printing machines A driving device for printing machines, having a rod for oscillatingly moving a distributor roller in axial direction, includes a joint via which the rod is connected to the distributor roller, the joint permitting relative movement between the rod and th... | 02/17/2004 |
| 6672208 | Method and apparatus for using magnetic bearings to position an inking unit roller in at least two different positions A method and a corresponding inking unit permit positioning of a roller into at least two different operating positions. The roller is, in particular, a vibrator roller of an inking unit for a rotary printing machine. The roller is positioned by controlli... | 01/06/2004 |
| 6612233 | Sheet feed offset press The present invention provides a method for operating a sheet-fed offset press so as to reduce the occurrence of spoilage caused by nonuniform printing. In this method, the timing of start of oscillating motion of oscillating rollers is regulated. Also, t... | 09/02/2003 |
| 6584902 | Inking roller nip width adjustments in a rotary printing press A rotary printing press has one or two inking rollers each in rolling engagement with both an ink supply cylinder and a plate cylinder. Each inking roller is identically supported by a first pair of roller support members mounted one adjacent each end of ... | 07/01/2003 |
| 6546869 | Method of operating a printing machine, and a printing machine for performing the method A method of operating a printing machine including a printing form cylinder and an inking unit for inking the cylinder, the inking unit having at least one inking unit roller rotatably driven at a speed different from the peripheral speed of the printing ... | 04/15/2003 |
| 6539862 | Chambered doctor blade assembly A chambered doctor blade assembly which can be placed against a roller of an inking unit of a printing machine, in particular onto an engraved roller, has a chamber connected to the surface of the roller by means of an orifice through which printing ink c... | 04/01/2003 |
| 6460455 | Method for dampening a planographic printing form and dampening unit of a planographic printing machine for performing the method A method for dampening a rotating planographic printing form via an ink applicator roller for indirectly dampening the planographic printing form and via a connecting roller in engagement with the ink applicator roller and engaged by a dampener roller for... | 10/08/2002 |
| 6435086 | Retractable inking/coating apparatus having ferris movement between printing units A retractable in-line inking/coating apparatus selectively applies either spot or overall ink/coating to a blanket or flexographic plate on a blanket cylinder or spot coating or overall ink/coating to a flexographic printing plate on a plate cylinder in a... | 08/20/2002 |
| 6425326 | Inking unit in a printing machine An inking unit in a printing machine includes a throw-off device for throwing an ink applicator roller group off a printing form cylinder, the throw-off device including a rotatable roller throw-off cam contoured so that, in a first rotational position of... | 07/30/2002 |
| 6422143 | Flexographic preview printer A flexographic preview printer for duplicating conditions of a contemplated press run. The preview printer includes an inking unit and a printing unit. The inking unit has an ink roller and an anilox roller with a doctor blade for precision metering of th... | 07/23/2002 |
| 6393983 | Ink rail for printing press An ink rail for a printing press has an ink rail body, a pedestal, a supporting member and a distance adjusting means. The ink rail body has a concave curved surface and also has an ink supplying surface having plural ink supplying ports opened to the con... | 05/28/2002 |
| 6378427 | Process and device for modifying the temperature of the inking unit of a web-fed rotary printing machine To effectively cool the inking unit of a rotary printing machine during a machine stop, the inking unit can be driven during the machine stop by at least one motor, with the rubber-covered ink transport rollers having contact with the temperature-modified... | 04/30/2002 |
| 6347585 | Variable gap stabilizer A gap adjusting device for a rotary press comprises a frame and a fountain roller and a metering roller which are both rotatably mounted relative to the frame. A gap is defined between the metering roller and the fountain roller, and an adjustment member ... | 02/19/2002 |
| 6336403 | Dampening system for printing machines A fluid dampening system for a printing machine has a frame and a printing roll on the frame for holding a circular printing plate. A fluid reservoir is on the frame and a fountain roll is on the frame and is partially immersed in the fluid reservoir. A s... | 01/08/2002 |
| 6220162 | Method and apparatus for detecting collisions in printing machines Apparatus for detecting collisions in a printing machine having at least one rotationally driveable rotary body (18; 20) and an actuator (28; 30) for adjusting the rotary body in a direction normal to the axis of rotation, the apparatus including a torque... | 04/24/2001 |
| 6213017 | Ink duct pivotable between two positions An ink duct is used with an ink-metering roller of a printing press. The ink duct includes doctor blades and is shiftable for pivoted movement between a working position and an emptying position with at least one of the doctor blades remaining in contact ... | 04/10/2001 |
| 6135023 | Stencil printing machine having mechanism for adjusting gap between squeegee and doctor rollers A stencil printing machine includes a printing drum having a flexible ink-permeable circumferential wall adapted to receive a perforated stencil sheet around an outer circumferential surface thereof, the printing drum being rotated around a central axis t... | 10/24/2000 |
| 6116158 | Retractable printing/coating unit operable on the plate and blanket cylinders A retractable in-line inking/coating apparatus can apply either spot or overall inking/coating material to a plate and/or a blanket on the first printing unit or on any consecutive printing unit of any rotary offset printing press. The inking/coating appa... | 09/12/2000 |
| 6098542 | Method and device for force loading a rubber blanket roller in a printing press A rubber roller in a printing press inker or dampener is force loaded against its adjacent rollers with hydraulic cylinders. The bearings of the adjacent rollers are fixed in the machine frame, while the position setting sockets of the rubber roller are s... | 08/08/2000 |
